Package org.firebirdsql.gds

Class ParameterBufferHelper

java.lang.Object

org.firebirdsql.gds.ParameterBufferHelper

public class ParameterBufferHelper
extends Object

This class maps the extended JDBC properties to parameter buffer types (for transaction and database parameter buffers). It uses java.lang.reflection to determine correct type of the parameter passed to the Driver.connect(String, Properties) method.

Version:

1.0

Author:

Roman Rokytskyy, Mark Rotteveel

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ParameterBufferHelper.DpbParameterType	Dpb type, which is the name, the key for the dpb and its value type.
static enum	ParameterBufferHelper.DpbValueType	Enum with the various Dpb value types, and conversion from String to that type.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DPB_PREFIX
static final String	ISC_DPB_TYPES_RESOURCE
static final String	TPB_PREFIX

Constructor Summary

Constructors

Constructor	Description
ParameterBufferHelper()

Method Summary

Modifier and Type	Method	Description
static Integer	getDpbKey(String name)	Get integer value of the DPB key corresponding to the specified name.
static Map<String,Integer>	getDpbMap()	Get mapping between DPB names and their keys.
static ParameterBufferHelper.DpbParameterType	getDpbParameterType(String name)	Gets the ParameterBufferHelper.DpbParameterType for the specified dpb item name (short or long)
static Integer	getTpbParam(String name)	Get value of TPB parameter for the specified name.
static Object	parseDpbString(String name, Object value)	Deprecated. In general, parseDpbString(String, String) should be used; this method is not planned for removal
static Object	parseDpbString(String name, String value)	Parse string to DPB value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DPB_PREFIX

public static final String DPB_PREFIX

See Also:

• Constant Field Values

TPB_PREFIX

public static final String TPB_PREFIX

See Also:

• Constant Field Values

ISC_DPB_TYPES_RESOURCE

public static final String ISC_DPB_TYPES_RESOURCE

See Also:

• Constant Field Values

Constructor Details

ParameterBufferHelper

public ParameterBufferHelper()

Method Details

getDpbKey

public static Integer getDpbKey(String name)

Get integer value of the DPB key corresponding to the specified name.

Parameters:

name - name of the key.

Returns:

instance of Integer corresponding to the specified name or null if value is not known.

getDpbParameterType

public static ParameterBufferHelper.DpbParameterType getDpbParameterType(String name)

Gets the ParameterBufferHelper.DpbParameterType for the specified dpb item name (short or long)

Parameters:

name - Name of the dpb item

Returns:

DpbParameterType instance, or null if there is no item with this name

getDpbMap

public static Map<String,Integer> getDpbMap()

Get mapping between DPB names and their keys.

Returns:

instance of Map, where key is the name of DPB parameter, value is its DPB key.

parseDpbString

@Deprecated
public static Object parseDpbString(String name,
 Object value)

Deprecated.

In general, parseDpbString(String, String) should be used; this method is not planned for removal

Parse object to DPB value.

Parameters:

name - Name of DPB item

value - Value to parse

Returns:

Object type appropriate for this DPB type

parseDpbString

public static Object parseDpbString(String name,
 String value)

Parse string to DPB value.

Parameters:

name - Name of DPB item

value - Value to parse

Returns:

Object type appropriate for this DPB type

getTpbParam

public static Integer getTpbParam(String name)

Get value of TPB parameter for the specified name. This method tries to match string representation of the TPB parameter with its value.

Parameters:

name - string representation of TPB parameter, can have "isc_tpb_" prefix.

Returns:

value corresponding to the specified parameter name or null if nothing was found.